[Bug 91681] GPU HANG: ecode 0:0x86cd3cff, in Civ5XP [24060], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91681

yann <yann.argotti at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|XOrg git                    |unspecified
         QA Contact|intel-gfx-bugs at lists.freede |
                   |sktop.org                   |
          Component|DRM/Intel                   |Drivers/DRI/i915
           Assignee|intel-gfx-bugs at lists.freede |idr at freedesktop.org
                   |sktop.org                   |
            Product|DRI                         |Mesa

--- Comment #1 from yann <yann.argotti at intel.com> ---
We seem to have neglected the bug a bit, apologies.

There were improvements pushed in kernel and Mesa that will benefit to your
system, so please re-test with latest kernel & Mesa to see if this issue is
still occurring.
 (you may also collect and attach logs collected thanks to apitrace:
http://apitrace.github.io/)

In parallel, assigning to Mesa product (please let me know if I am mistaken
with this GPU Hang).

Kernel: 3.13.0-62-generic
Platform: Broadwell-U (pci id: 0x1616)
Mesa: [Please confirm your mesa version]

>From this error dump, hung is happening in render ring batch with active head
at 0x314c251c, with 0x79120000 (3DSTATE_PUSH_CONSTANT_ALLOC_VS) as IPEHR.

Batch extract (around 0x314c251c):

Bad length 7 in (null), expected 6-6
0x314c24ec:      0x7b000005: 3DPRIMITIVE: fail sequential
0x314c24f0:      0x00000104:    vertex count
0x314c24f4:      0x00000816:    start vertex
0x314c24f8:      0x00006a92:    instance count
0x314c24fc:      0x00000001:    start instance
0x314c2500:      0x00000000:    index bias
0x314c2504:      0x00000000: MI_NOOP
0x314c2508:      0x78230000: 3D UNKNOWN: 3d_965 opcode = 0x7823
0x314c250c:      0x00005840: MI_NOOP
0x314c2510:      0x78210000: 3D UNKNOWN: 3d_965 opcode = 0x7821
0x314c2514:      0x00005440: MI_NOOP
0x314c2518:      0x79120000: 3DSTATE_PUSH_CONSTANT_ALLOC_VS
0x314c251c:      0x0000000a:    dword 1
0x314c2520:      0x79150000: 3DSTATE_PUSH_CONSTANT_ALLOC_GS
0x314c2524:      0x000a000a:    dword 1
0x314c2528:      0x79160000: 3DSTATE_PUSH_CONSTANT_ALLOC_PS
0x314c252c:      0x0014000c:    dword 1

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